Interlayer exchange coupling of Fe/Y multilayers

Yasushi Endo, Daisuke Takama, Masahiko Yamamoto, Tomoyoshi Suenobu, Shunichi Fukuzumi

Research output: Contribution to journalLetterpeer-review

2 Citations (Scopus)

Abstract

We have investigated the interlayer exchange coupling in Fe (3.0 nm)/Y (tY nm) multilayers at the range of Y layer thickness (tY) from 0.4 to 4.0nm by a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR). The coupling changes from antiferromagnetic (AFM) to non-coupled state with an increase of tY. The coupling constant (J1) in each AFM coupled Fe/Y multilayer can be evaluated, and the maximum value of J1 is found to be about -0.1 erg/cm2 at tY = 0.8 nm. The AFM state is considered to occur across the pure Y layer and the Fe-Y mixing layer formed at the Fe/Y interface.

Original languageEnglish
Pages (from-to)L291-L293
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume42
Issue number3 B
Publication statusPublished - 2003 Mar 15
Externally publishedYes

Keywords

  • Antiferromagnetic coupling
  • Fe-Y mixing layer
  • Fe/Y multilayer
  • Interlayer exchange coupling
  • Pure Y layer

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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